Terrazzo strip



June 13, 1933. H. L. FlNK TERRAZZO STRIP Filed April 12, 1928 ?atented `Func i3, 1933 UNITED STATES HARRY L. FINK, OF NEW YORK, N. Y.

TERRAZZO STRIP Application med April 12. 1928. Serial No. 269,340.

The invention relates to metal strips used to separate sections or areas of different colors or compositions, of walls or floors of plastic material, usually concrete mixtures;

. or to produce surface patterns in such fioors, these structures being usually called terrazzo or terrazzo mosaic. The strips are therefore conveniently identified as terrazzo strips.

The general object is to provide an im proved strip having a .wide upper surface, which reduces Wide metal zones or stri es separating the tile or mosaic areas, and deflning the surface pattern. These strips as heretofore made are usually of sheet metal of moderate thickness, whose upper edges provide only narrow surface lines or stripes.

it will be noted that in each case the head or top bar is so constructed as to form a rab bet for the base stri and also` that such head projects, opposite t e rabbet over the' portions 2., This rabbet has a flat side resting against the side of the base strip and ashoulder resting on the top edge of said base strip. A more particular object is to provide the desired wide top surface as a part of an ori inally-separate top or head strip, of su stantial cross-section, permanently secured to the main or body strip of sheet metal, as by spot welding. Thus a substantial economy of material is effected, and the upper portion of the complete strip has increased strengthand rigidity.

rIhe top or head stri preferably has a dependent portion or ace overlapping and welded to an upper marginal face of the body strip, and a horizontal flange or shoulder abutting the upper edge of the body strip.

The characteristics and advantages of the invention are further sufliciently explained in connection with the following detail description of the accompanying drawing, which shows representative embodiments. After considering these examples, skilled persons will understand thatmany variations may be made without departing from the principles disclosed, and I contemplate the employment of any structures that are properly within the scope of the appended claims.

Fig. 1 is a combined sectional and perspective view of a terrazzo strip, embodying the invention in one form.

Figs. 2 and 3 are similar views of modified structures.

The main or body strip 1 is of sheet metal (usually brass) of moderate thickness, ras usual. It may have any suitable formations to forni a bond with the concrete material, such as the integral bowed strips 2, produced 6o by punching or pressing operations. The upper edges 3 of these strips may in some cases define the upper surface 4 of the lower or base layer 5 of plastic composition, in which the lower part of the body strip-1 is e5 embedded, the upper or finishing layer 6 of one or a variety oi compositions or colors bein then poured between the partitions provide by the upper'portions of the stri-ps.

The upper portion or head of the com- 7o plete strip consists ol' an originally separate stri or bar 7 ot' substantial cross-section (this bein also usually brass). The sectional form of t is bar may vary. Thus in Fig. l it is of nearly oblong cross-section, having one side cut away below the top to form an inset face 8 fitting against the upper margin of strip 1, and a shoulder ,9 overlying the upper edge of strip 1. ln Fig. 2 bar 7 is of T-section, the vertical flange l0 lying against 80 the tace of strip l, and one of the top anges l1 over ing and projecting beyond the upper edge o the base strip. yIn Fig. 3,y the sectional form of bar 7b is the same as that of bar 7 of Fig. l, With the addition of an upper 85 Harige 12.

in any of its forms, the top bar or head has a flat upper face of substantial width, greater than that of the base'strip, to provide a relatively Wide visible metallic strip 0r band 90 on the wall or floor surface, when the oomplete strip is set in the plastic structure in the usual Way.

The head or top bar may be connectedvto the body strip in any suitable way. Preferably Iit is secured by spot-welding, these welds 20 being made at suitable intervals, to secure together the dependent flange portion of the head and the upper margin of the base strip.

l claim 2' 1s A terrazzo strip, comprising a base strip of sheet metal of moderate thickness and an operatively-integral metal head of relatively thick cross-section having a top surface of substantial width, greater than that of the base strip, said head having a rabbet running along one lower edge of the head and into which the upper part of the base strip fits with an upper side portion against the side of the rabbet and its top edge engaging the top of said rabbet.

2. A terrazzo strip, comprising a base strip of sheet metal of moderate thickness and an originally-separate metal head of substantial thickness, having a wide top surface, and permanently secured to an upper portion of the base strip, said head having a rabbet running along one lower edge ofthe head and into which the upper part of the base strip lits with an upper side portion against the side of the rabbet and its top edge engaging the top of said rabbet.

8. A terrazzo strip, comprising a base strip of sheet-metal of moderate thickness and an originally-separate metal head of substantial thickness, having a wide top surface, and permanently secured by welding to an upper portion of the base strip, said head having a rabbet running along one lower edge of the head and into which the upper part of the base strip fits with an upper side portion against the side of the rabbet and its top edge engaging the top of said rabbet.

4. A terrazzo strip, comprising a base strip of sheet metal of moderate thickness and an operatively-integral metal head of relatively thick polygonal cross-section having a top surface of substantial width, greater than that of the base strip, the head having a ortion overlying the upper edge of the ase strip, said head having a rabbet running along one lower edge of the head and linto which the upper part of the base strip fits with an upper side portion against the side of the rabbet and its top edge engaging the top of said rabbet.

5. A terrazzo strip, comprising a base strip of sheet metal of moderate thickness and an originally-separate metal top bar of substantial thickness, said top bar having a rabbet running along one of its lower edges, the upper portion of` the base strip havin its Aside surface abutting against the side of the rabbet, and means for permanently securing the abutting portions of said bar and base strip to each other.

t.,A A terrazzo strip comprising originallyseparate upper and lower metal sections, one

of said sections being formed to present surfaces substantially perpendicular to each other in planes which form a reentrant angle into which the other section may be assembled hy sidewi'se motion, and the other section having an edge contacting with one of said surfaces and a side contacting with the other of said surfaces; and means for permanently securingr the two sections together'.

7. A. terrazzo strip having an uninterrupted straight upper edge; the strip comprising originally-separate upper and lower metal sections, one of said sections being formed to present surfaces substantially perpendicular to each other in planes which form a reentrant angle into which the other section may be assembled by sidewise motion, and the other section having an edge contacting with one of said surfaces and a side contacting with the other of said surfaces; means for permanently securing the two sections together; and anchoring means extending outwardly from one side-of the lower section.

8. A terrazzo strip comprising originallyseparate upper and lower metal sections, one of said sections being formed to present substantially fiat surfaces positioned in two planes which form a reentrant angle that is substantially a right angle, and the other of said sections having a side surface and an edge surface forming an exterior angle that is also substantially a right. angle, the two sections being assembled with the exterior angle of one section nesting with the reentrant angle of the other section; and means for permanently securing the two sections together.

9. A terrazzo strip comprising originallyseparate upper and lower sections, the lower section being formed from sheet metal of moderate'thickness and the upper section being metal of greater thickness, one of said sections being formed to present substantially flat surfaces positioned in two planes which form a reentrant angle that is substantially a right angle, and the other of said sections having a side surface and an edge surface forming an exterior angle that is also substantially a right angle, the two sections being assembled with the exterior angle of one section nesting with the reentrant angle of the other section; and means for permanently securing the two sections together.

l0. A terrazzo strip comprisin ori nally-separate upper and lower sectlons, t e lower section being formed from sheet metal of moderate thickness and the upper section being metal of greater thickness, one of said sections bein formed to present substantially flat suraces positioned in vertical and horizontal planes which form a reentrant angle that is substantially a right angle, and the other of said sections having a side surface and an edge surface forming an exterior angle'that is also substantiallv a right angle, the two sections being assembled with the eX- terior angle of one section nesting with the reentrant angle of the other section; and means for permanently securing together the contacting vertical surfaces of the two sec tions.

11. A terrazzo strip hai-ving uninterrupted straight upper and lower edges; the strip comprising originally-separate upper and lower sections, the lower section being formed from sheet metal of moderate thick ness and the upper section being metal ofgreater thickness, one of said sections being formed to present substantially fiat surfaces positioned in two planes which form a reentrant angle that is substantially a right angle, and the other of said sections having a side surface and an, edge surface forming an eX- terior angle that is also substantially a right angle, the two sections being assembled with the exterior angle of one section nesting with the reentrant angle of the other section;

means for pe1-n1anently securing the two sections together; and anchoring means extending outwardly from one side of the lower Y p section.-

12. A terrazzo strip comprising a base Y strip of sheet metal of moderate thickness, an

originally-separate metal top bar of substantial thickness having a straight uninterruptl-` ed upper edge, said top bar having a rab runnlng along one of its lower edges whereby the lower portion of the top bar is of lesser thickness than the upper portion, means for securing the base strip to the thinner portion of the top bar, and anchoring means projecting outwardly from the base strip.

In testimony whereof I aix my si ature.

HARRY L. INK. 

